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klemol [59]
3 years ago
12

WRITE THE ELECTRONIC CONFIGURATION OF THE FOLLOWING ELEMENT

Chemistry
1 answer:
Sloan [31]3 years ago
7 0

Answer:WHAT IS THE ELEMENT NAME?

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Balance the following chemical equations.
Paul [167]
A)Cu2O(s) + C(s) ———> 2Cu(s)+ CO(g)

B)H2(g) +Cl2(g)———> 2HCl(g)
8 0
2 years ago
Consider the reaction. A(aq) = 2 B(aq) Kc = 6.90 x 10 6 at 500 K If a 3.00 M sample of A is heated to 500 K, what is the concent
kirza4 [7]

Answer:

0.004548 M is the concentration of B at equilibrium at 500 K.

Explanation:

                         A(aq) ⇆ 2 B(aq)

Initially               3.00 M

At equilibrium   3.00 -x    2x

Equilibrium constant of the reaction at 500 K =K_c=6.90\times 10^{-6}

Concentration of A at 500 K at equilibrium , [A] = (3.00 -x )M

Concentration of B at 500 K at equilibrium,[B]= 2x

An expression of equilibrium constant is given as:

K_c=\frac{[B]^2}{[A]}

6.90\times 10^{-6}=\frac{4x^2}{(3.00-x)}

On solving for x:

x = 0.002274 M

[B] = 2 x = 2 × 0.002274 M = 0.004548 M

[A] = (3-x) = 3 M - 0.002274 M =2.997726 M

0.004548 M is the concentration of B at equilibrium.

8 0
3 years ago
How many valence electrons in <br> 4s1
Gekata [30.6K]

Answer:

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a

Explanation:

8 0
3 years ago
A peach falls from a tree with an acceleration of 9.8 m/s2. The peach has a mass of
svlad2 [7]

Answer:

F = 0.0725 N

Explanation:

Given that,

The mass of peach, m = 7.4 g

We need to find the force acts on the peach when it falls from a tree. The force is given by :

F = mg

So,

F=7.4\times 10^{-3}\times 9.8\\\\F=0.0725\ N

So, the force is 0.0725 N.

5 0
3 years ago
Dennie wanted to see if crayfish preferred one kind of food over another. He gave one group of crayfish plants, both living and
iogann1982 [59]

Answer:

A) type of food.

5 0
3 years ago
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